◎ A New Sitting Revolution!! Introducing a chair that instantly supports your posture! Are you suffering from back and waist pain caused by poor posture? You no longer need to endure the pain. Instantly adjust your sitting posture, straighten your back, and release your spine. Say goodbye to bad habits like slouching and distorted posture, regain proper posture, protect your lumbar spine, and relieve fatigue. Embrace a new, comfortable experience without worrying about poor posture! ◎ Lever Principle & Ergonomic Chair The pelvic support chair perfectly supports three key points: legs, buttocks, and waist, requiring no effort. It's like a large hand gently supporting your back, ensuring your sitting posture always maintains an ideal "S" curve! Even during long hours of exercise or work, sitting in this posture support chair will instantly give you a feeling of expansion, relieving lumbar fatigue. With long-term use, not only will your posture improve, but it will also help protect the health of your lumbar spine. Suitable for office workers, teleworkers, students, the elderly concerned about lumbar health, and pregnant women with back pain. Note: This product supports good posture, so it is produced using more robust materials, and some people may experience buttock pain. In this case, please use a cushion. $$4380